http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
계면활성제 혼합비에 따른 극세사 직물의 수축성에 관한 연구
김재관,김민지,김종원,홍상진,이준석,Kim, Jae Gwan,Kim, Min Ji,Kim, Jong Won,Hong, Sang Jin,Lee, Joon Seok 한국섬유공학회 2012 한국섬유공학회지 Vol.49 No.4
In order to investigate the contraction variation of an N/P (nylon/polyester) microfiber woven fabric wiper, optimal mixing ratio of surfactants and solvents were investigated. Four kinds of solvents including four anionic surfactants and seven nonionic surfactants were assessed for the best contraction characteristics of the fabrics. Emulsifying capacity, foaming capacity, and contraction power were measured and the optimal solution mixing ratio was selected. When the optimal mixing ratio of 36:54:60:850 was used in regards to aryl ethoxylate sulfate, EO/PO copolymer, methoxy propanol and benzyl alcohol, the contraction power of the fabric was obtained in terms of emulsifying capacity, foaming property and recyclability.
김재관,Kim, Jae-Gwan 한국과학기술단체총연합회 1973 과학과 기술 Vol.6 No.8
1.공업구조의 변화 2.중화학공업의 어제 3.중화학공업화의 전망 4.중화학공업시대의 실현
김재관,손미희,조영선,한나은,최종철,이성남,박명기,박용배,김병태,Jae-Gwan Kim,Mi-Hui Son,Young-Sun Cho,Na-Eun Han,Jong-Cheol Choi,Seong-Nam Lee,Myoung-Ki Park,Yong-Bae Park,Byeong-Tae Kim 한국식품위생안전성학회 2023 한국식품위생안전성학회지 Vol.38 No.4
To analyze the pesticide residues in commercial bee pollen products in South Korea, 61 samples were collected and screened for 339 pesticides. Results revealed that approximately 34% (>LOQ) of samples were contaminated with at least one pesticide. The pesticide residue detection rates of domestic and imported samples were 31% and 44%, respectively. Furthermore, the pesticide residue detection rate of online distribution (60%) was higher than that of offline distribution (27%). Fifteen pesticides were discovered in bee pollen, and pendimethalin, chlorfenvinphos, chlorpyrifos, and fluazinam were detected in 7, 6, 3, and 2 order of frequency, respectively. Even though its concentration was low, chlorfenvinphos which is banned in food crops in the United States, European Union, and Korea, was detected in bee pollen samples commonly. Therefore, continuous investigation of pesticide residues in bee pollen products and their acceptance criteria is required for safety.